YZZHT503V2ANALOG TELEPHONE ADAPTER

HT503 USER MANUAL Grandstream Networks, Inc. HT503 FXS/FXO Port Analog Telephone Adaptor FIRMWARE VERSION 1.0.9.1 HT503 USER MANUAL Page 2 of 59 HT503 USER MANUAL INDEX GNU GPL INFORMATION .......................................................................... 5 CHANGE LOG ........................................................................................... 6 CHANGES FROM 1.0.7.6 USER MANUAL .......................................................................................... 6 CHANGES FROM 1.0.6.8 USER MANUAL .......................................................................................... 6 WELCOME ................................................................................................. 7 SAFETY COMPLIANCS ........................................................................................................................ 7 WARRANTY ........................................................................................................................................... 7 CONNECT YOUR HT503 ........................................................................... 9 EQUIPMENT PACKAGING ................................................................................................................... 9 CONNECTING THE HT503 ................................................................................................................... 9 PRODUCT OVERVIEW ............................................................................ 12 SOFTWARE FEATURES OVERVIEW ................................................................................................ 12 HARDWARE SPECIFICATION ............................................................................................................ 14 BASIC OPERATIONS .............................................................................. 15 UNDERSTANDING HT503 VOICE PROMPT ..................................................................................... 15 PLACING A PHONE CALL .................................................................................................................. 17 PHONE OR EXTENSION NUMBERS .......................................................................................... 17 DIRECT IP CALLS ........................................................................................................................ 17 CALL HOLD ......................................................................................................................................... 18 CALL WAITING .................................................................................................................................... 18 CALL TRANSFER ................................................................................................................................ 19 BLIND TRANSFER ....................................................................................................................... 19 ATTENDED TRANSFER .............................................................................................................. 19 3-WAY CONFERENCING .................................................................................................................... 19 PSTN PASS THROUGH ...................................................................................................................... 20 VOIP-TO-PSTN CALLS ....................................................................................................................... 21 PSTN-TO-VOIP CALLS ....................................................................................................................... 22 ROUTE CALLS TO PSTN ................................................................................................................... 23 FORWARD CALLS TO PSTN .............................................................................................................. 23 FORWARD CALLS TO VOIP ............................................................................................................... 23 ONE STAGE DIALING ......................................................................................................................... 24 FAX SUPPORT .................................................................................................................................... 24 FIRMWARE VERSION 1.0.9.1 HT503 USER MANUAL Page 3 of 59 CALL FEATURES .................................................................................... 25 CONFIGURATION GUIDE ........................................................................ 27 CONFIGURING HT503 THROUGH VOICE PROMPT ....................................................................... 27 CONFIGURING HT503 WITH WEB BROWSER ................................................................................ 27 ACCESS THE WEB CONFIGURATION MENU ........................................................................... 28 DEFINITIONS ...................................................................................................................................... 29 SAVING THE CONFIGURATION CHANGES...................................................................................... 53 REBOOTING FROM REMOTE ........................................................................................................... 53 CONFIGURATION THROUGH A CENTRAL SERVER ....................................................................... 54 SOFTWARE UPGRADE ........................................................................... 55 FIRMWARE UPGRADE THROUGH TFTP/HTTP/HTTPS .................................................................. 55 INSTRUCTIONS FOR LOCAL FIRMWARE UPGRADE ..................................................................... 56 CONFIGURATION FILE DOWNLOAD ................................................................................................ 56 FIRMWARE AND CONFIGURATION FILE PREFIX AND POSTFIX .......................…

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Grandstream Networks, INC Address: 5F, Bldg #1, No.2 Kefa Rd., Science & Technology Park, Shenzhen, China Phone: (86)-755-26014600 FAX : (86)-755-26014601 AGENCY AUTHORIZATION LETTER FCC ID: YZZHT503V2 Date:2013/9/9 To whom it may concern: We, the undersigned, hereby authorize ECMG to act on our behalf , as our agent ,in the following matters related to the FCC approval of our products: report submittal, related correspondence, the signing of all documents relating to the matters. and any other lawful activity necessary to obtain such certification. Any act carried out by ECMG within the scope of this authorization shall have the same effects as our own. This authorization shall expire 6 months from original date , if you have any question regarding the authorization , please don’t hesitate to contact us , thank you. Sincerely, Wei Ning /Deputy management Phone: (86)-755-26014600 FAX : (86)-755-26014601 Email: [email protected]

Grandstream Networks,INC Date: 2013/9/9 Federal communications commission Authorization and Evaluation Division FCC ID:YZZHT503V2 Confidentiality Request Pursuant to section 0.457 and 0.459 of the commission’s rules, the applicant hereby requests confidential treatment of information accompanying this application as outline below: 1. Schematics 2. Block diagram 3. Operational description The above materials contain trade secrets and proprietary information not customarily released to the public, the public disclosure of these matters might be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to rule 0.457, disclosure of this application and all accompanying documentation will not be made before the date of the grant for this application. Sincerely, Wei Ning /Deputy management Phone: (86)-755-26014600 FAX : (86)-755-26014601 Email: [email protected]

EUT Sample Photos for model HT503 External photos EUT- Front&Top View EUT- Bottom View EUT- Rear& I/O Ports View Power Adaptor #1 View (Manufacturer: Mass Power) Power Adaptor #2 View (Manufacturer: UE power)

FCC Product Label & Label Location Proposed FCC Label format: FCC Label Location:

EUT Sample Photos for model HT503 Internal photos Uncovered View Main board-Top view Main board-Bottom view

www.ecmg-global.net EMI TEST REPORT On Model Name: Analog Telephone Adapter Model Number: HT503 Brand Name: Grandstream Prepared for Grandstream Networks, INC FCC ID Number: YZZHT503V2 According to FCC 47 CFR Part 15, Subpart B Test Report #: SHE-1308-11040-FCC Tested by: Galanz Daomen /Engineer Company Name Reviewed by: ECMG Jawen Yin/ Senior Engineer Company Name QC Manager: ECMG Swall Zhang/QC Manager Company Name Test Report Released by: September 13, 2013 ⎯⎯⎯⎯⎯⎯⎯ ⎯⎯⎯⎯⎯⎯⎯ Swall Zhang Date Test Location Tests performed in a Certified ANSI Semi-Anechoic Chamber and Shielded Room. Test Site Location : Galanz 25 South Ronggui Rd.,Shunde, Foshan,Guangdong, China Tel : (86)-757-23612785 Fax : (86)-757-23612537 Test Facility The test facility was recognized, certified, or accredited by the following organizations: z CNAL – LAB Code: L2244 Galanz EMC Laboratory has been assessed and in compliance with CN AL/AC01:2002 accreditation criteria for testing laboratories (identic al to ISO/IEC 17025:2005 General Requirements)for the Competence of Testing Laboratories. z FCC – Registration No.: 580210 Galanz EMC Laboratory has been registered and fully described in a report filed with the (FCC) Federal Communications Commission. The acceptance letter from the FCC was maintained in our files. Table of Contents GOVERNMENT DISCLAIMER NOTICE ___________________________________________ 2 REPRODUCTION CLAUSE ______________________________________________________ 2 OPINIONS AND INTERPRETATIONS ____________________________________________ 2 STATEMENT OF MEASUREMENT UNCERTAINTY ________________________________ 2 ADMINISTRATIVE DATA _______________________________________________________ 3 EUT DESCRIPTION _____________________________________________________________ 4 TEST SUMMARY _______________________________________________________________ 5 TEST MODE JUSTIFICATION ___________________________________________________ 6 EUT EXERCISE SOFTWARE _____________________________________________________ 6 EQUIPMENT MODIFICATION ___________________________________________________ 6 EUT SAMPLE PHOTOS FOR MODEL HT503 _____________________________________ 7 TEST SYSTEM DETAILS _______________________________________________________ 11 ATTACHMENT 1 - CONDUCTED EMISSION TEST RESULTS _____________________ 14 ATTACHMENT 2 – RADIATED EMISSION MEASUREMENT ______________________ 20 FCC Test Report #: SHE-1308-11040-FCC Prepared for Grandstream Networks, INC Prepared by ECMG Electronic Technical Testing Corp (Shenzhen) Page 1 of 31 List Attached Files Exhibit Type File Description File Name Test Report Test Report YZZHT503V2_Test report.pdf Operation Description Technical Description YZZHT503V2_operation description.pdf External Photos External Photos YZZHT503V2_External Photos Internal Photos Internal Photos YZZHT503V2_Internal Photos Block Diagram Block Diagram YZZHT503V2_Block Diagram.pdf Schematics Circuit Diagram YZZHT503V2_Schematics.pdf ID Label/Location Label and Location YZZHT503V2_Label & Location.pdf User Manual User Manual YZZHT503V2 _User Manual.pdf Test set-up photos Test set-up photos YZZHT503V2 _Test Set-up Photos FCC Test Report #: SHE-1308-11040-FCC Prepared for Grandstream Networks, INC Prepared by ECMG Electronic Technical Testing Corp (Shenzhen) Page 2 of 31 Government Disclaimer Notice When government drawing, specification, or other data are used for any purpose other than in connection with a definitely related government procurement operation, the United States Government thereby incurs no responsibility nor any obligation whatsoever; and the fact that the Government may have formulated, furnished, or in any way supplied the said drawing, specifications, or other data, is not to be regarded by implication or otherwise in any manner licensing the holder or any other person or corporation, or conveying any rights or permission to manufacture, use, or sell patented invention that may in any way be related thereto.This report must not be used to claim product endorsement by NVLAP or any agency of the U.S. Government. Reproduction Clause Any reproduction of this document must be done in full. No single part of this document may be reproduced without permission from ECMG Electronic Technical Testing Corp (Shenzhen). Opinions and Interpretations This test report relates to the abovementioned equipment under test (EUT).Without the permission of ECMG Electronic Technical Testing Corp (Shenzhen) Test Lab this test report is not permitted to be duplicated in extracts. This test report does not entitle to carry any test mark on this or similar products. The manufacturer has sole responsibility of continued compliance of the device. Statement of Measurement Uncertainty The data and results referenced in the document are true and accurate. The reader is cautioned that there may be errors within the calibration limits of the equipment and facilities that can account for a nominal measurement error. Furthermore, component and process variability of devices similar to that tested may result in additional deviation. FCC Test Report #: SHE-1308-11040-FCC Prepared for Grandstream Networks, INC Prepared by ECMG Electronic Technical Testing Corp (Shenzhen) Page 3 of 31 Administrative Data Test Sample : Analog Telephone Adapter Model Numbers : HT503 Model Tested : HT503 Receipt Date : September 6 th , 2013 Date Tested : September 11 st , 2013 Applicant : Grandstream Networks, INC Address 5F, Bldg #1, No.2 Kefa Rd., Science & Technology Park, Shenzhen, China Telephone : (86)-755-26014600 Fax : (86)-755-26014601 Manufacturer : Grandstream Networks, INC Address 5F, Bldg #1, No.2 Kefa Rd., Science & Technology Park, Shenzhen, China Telephone : (86)-755-26014600 Fax : (86)-755-26014601 Factory : Grandstream Networks, INC Address 5F, Bldg #1, No.2 Kefa Rd., Science & Technology Park, Shenzhen, China Telephone : (86)-755-26014600 Fax : (86)-755-26014601 FCC Test Report #: SHE-1308-11040-FCC Prepared for Grandstream Networks, INC Pre…

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TEST PHOTOS: Conducted Emission Test Set-up –front view Conducted Emission Test Set-up –rear view Radiated Emission Test Set-up (9KHz-30MHz) Radiated Emission Test Set-up (Below 1GHz) Radiated Emission Test Set-up (Above 1GHz)